Find the exact value of the expression.cos (255° - 15°)
A. 
B. - 
C. 
D. - 
Answer: D
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Classify the polynomial as constant, linear, quadratic, cubic, or quartic, and determine the leading term, the leading coefficient, and the degree of the polynomial.f(x) = -11
A. Quadratic; -11; -11; 2 B. Linear; -11; -11; 1 C. Constant; -11; -11; 1 D. Constant; -11; -11; 0
What percent of the total population is found between the mean and the z-score?
Standard Normal Distribution; z-scores z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.090.0 0.0000 0.0040 0.0080 0.0120 0.0160 0.0199 0.0239 0.0279 0.0319 0.03590.1 0.0398 0.0438 0.0478 0.0517 0.0557 0.0596 0.0636 0.0675 0.0714 0.07530.2 0.0793 0.0832 0.0871 0.0910 0.0948 0.0987 0.1026 0.1064 0.1103 0.11410.3 0.1179 0.1217 0.1255 0.1293 0.1331 0.1368 0.1406 0.1443 0.1480 0.15170.4 0.1554 0.1591 0.1628 0.1664 0.1700 0.1736 0.1772 0.1808 0.1844 0.18790.5 0.1915 0.1950 0.1985 0.2019 0.2054 0.2088 0.2123 0.2157 0.2190 0.22240.6 0.2257 0.2291 0.2324 0.2357 0.2389 0.2422 0.2454 0.2486 0.2517 0.25490.7 0.2580 0.2611 0.2642 0.2673 0.2704 0.2734 0.2764 0.2794 0.2823 0.28520.8 0.2881 0.2910 0.2939 0.2967 0.2995 0.3023 0.3051 0.3078 0.3106 0.31330.9 0.3159 0.3186 0.3212 0.3238 0.3264 0.3289 0.3315 0.3340 0.3365 0.33891.0 0.3413 0.3438 0.3461 0.3485 0.3508 0.3531 0.3554 0.3577 0.3599 0.3621? A. 17.17% B. 22.17% C. 12.17% D. 11.79% E. 27.17%
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
- 
B. 
+ 
C. 
D. 
- 
Solve the inequality. Express your answer using interval notation. Graph the solution set.|x| < 4
A. (-?, -4) ? (4, ?)
B. [-4, 4]
C. (-4, 4)
D. (-?, 4]